#include<stdio.h>
int main()
{
	int n;
	scanf("%d",&n);
	int fact=1;
	int i=1;
	for (i=1;i<=n;i++){
		fact*=i;
	}
	printf("%d!=%d\n",n,fact);
	printf("%d\n",sizeof(int));
	
	return 0;
}
